Stillwater County, MT

ZIP 59001

In ZIP 59001, 6 of the 12 things we check have at least one part graded D or F.

• Drinking water: Red Lodge Water Dept meets every EPA legal limit; 7 contaminants are above health goals, led by lead at 28× California’s Public Health Goal.
• Nearest Superfund site: Mouat Industries, 5.4 miles away.
• Largest share of modeled toxic air from industry: Smc Precious Metals Smelter & Base Metals Refinery (100%), mostly chromium compounds.
• Fine particles (PM2.5) average 4.5 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 53,637 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 59001

• Superfund sites nearbyA to F
• Factories and industrial sitesA to B
• Oil and gas wellsA to F
• Parks and nature nearbyB to C
• Air qualityA
• Drinking water qualityC to D
• Pesticide useF
• Neighborhood health statusC to D
• Past wildfire impactsC
• Past flood impactsC
• Noise levelsA
• Radiation signalsD

Based on 3 census tracts · compiled September 10, 2026 · how each grade works and its sources

Loading the full report, with every source…